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Problem with big photo files in Aperture

280 Views 6 Replies Latest reply: Feb 20, 2013 6:16 AM by Ernie Stamper RSS
TediDubi Calculating status...
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Feb 20, 2013 3:20 AM

I'm running Aperture 3.4.3 and just recently - since using the Nikon D800 camera with files of 40+mb, I Import files and then click from Browser to Viewer. Get a good image for about 2 seconds after that the image looses 2 exposure stops, going very dark.

Has anyone experienced this or has any ideas for me, please?

OS X Mountain Lion (10.8.2)
  • Ernie Stamper Level 8 Level 8 (37,455 points)
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    Feb 20, 2013 4:33 AM (in response to TediDubi)

    What you are describing is not a factor of the large file size.  One of the changes in Aperture 3 as it has evolved, is to first use the Preview generated by the camera.  It waits to generate its own Preview until you actually click to display that one image.  Until then the thumbnails are based upon the camera provided JPEG Preview.


    In earlier versions, you never saw that, but only the initial Preview generated in Aperture.  It is not because of the different camera.


    I have a D800, btw, and do not see as much difference in the image rendered from RAW vs the initial JPEG Preview.  You may want to check settings that you are shooting with.



  • Ernie Stamper Level 8 Level 8 (37,455 points)
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    Feb 20, 2013 4:48 AM (in response to TediDubi)

    Even though you only shoot in RAW, the camera generates a Preview in JPEG, and puts in on the memory card.  Not sure what camera you may previously have used with Aperture, but this is normal for Nikons.


    If you use settings in the camera, such as Vivid, that will not be reflected in RAW image data, but only in the JPEG (Preview or if using JPEG).



  • Kirby Krieger Level 6 Level 6 (11,570 points)
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    Feb 20, 2013 6:20 AM (in response to TediDubi)

    Just remember that the problem is the JPG, not the RAW.  The converted-from-RAW Image should show you a faithful rendering of the data you recorded at the exposure settings you used.  Don't tweak the RAW to match the JPG; tweak it to match the exposure settings, _then_ tweak the camera PP settings (applied to only the JPG file) to show you on the camera LCD (which shows you the JPG) as close a match to the RAW as you can.  (Assuming recording RAW files is your goal.)  Even better, imho, is to ignore the LCD JPG image except for framing/focus, and set the camera's PP so that the LCD histogram (which is always, afaik, derived from the JPG) gives you useful information.


    Set "Aperture➞Preferences➞Import➞Post Import Processing" to "Standard Previews".


    Note that you _may_ want to change the default RAW Fine Tuning controls (this change the conversion).  (I change mine for my Sony a77, but not for my Sony a900/a850.)  You can experiment with changes, and then save them as a default for your camera.  Sad to report, these settings may not be preserved with upgrades to Aperture.


    Message was edited by: Kirby Krieger - minor additions.


    (Added:) I second Ernie's recommendation: if JPG meets your needs, use it.  Producing JPGs is a shorter and more-easily-channeled workflow.


    Message was edited by: Kirby Krieger

  • Ernie Stamper Level 8 Level 8 (37,455 points)
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    Feb 20, 2013 6:16 AM (in response to TediDubi)



    By all means get familiar with everything.  One thing to consider is that the Preview is a smaller file than most JPEGs the camera would produce as the true image original.  Shooting in RAW + JPEG increases your disk space requirements quite a bit, unless you used only the most Basic JPEG file size.


    The important thing is to find shooting solutions that produce the desired image in all formats, and in RAW.  RAW will let you best rescue photos, but otherwise you might like to settle for JPEG only.  Enjoy




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